US Bridges

RS0083 21st ST RD over I-35 HWY (kta)

Good

Butler County, Kansas · 2.98 MI NE Seg CO Line · Structure no. 999903500080773

Built
1956
69 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
323 ft
4 main spans
Daily traffic
4,879
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

RS0083 21st ST RD over I-35 HWY (kta) is a steel continuous stringer/multi-beam or girder carrying RS0083 21st ST RD over I-35 HWY (kta) in Butler County, Kansas. It was built in 1956, so it is 69 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,879 vehicles a day, projected to reach 4,978 by 2044. The structure is 323 ft (98.3 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesRS0083 21st ST RD
CrossesI-35 HWY (kta)
Location2.98 MI NE Seg CO Line
RouteCounty Highway 6504
CountyButler County
StateKansas
Coordinates37.72306, -97.10556
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating47.4 US tons
Inventory rating28.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length323 ft (98.3 m)
Longest span94 ft (28.7 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,879 (2023)
Projected traffic4,978 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RS0083 21st ST RD over I-35 HWY (kta) built?

It was built in 1956, making it 69 years old in 2025.

What condition is RS0083 21st ST RD over I-35 HWY (kta) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does RS0083 21st ST RD over I-35 HWY (kta) carry?

About 4,879 vehicles per day (2023 count).

How long is RS0083 21st ST RD over I-35 HWY (kta)?

The structure is 323 ft (98.3 m) long with a longest span of 94 ft (28.7 m) and a deck 32 ft wide.

Who owns RS0083 21st ST RD over I-35 HWY (kta)?

It is owned by the State Toll Authority.